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Studies of temperature distribution for laser welding of dissimilar thin sheets through finite element method

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Abstract

A three-dimensional numerical model has been prepared for the simulation of temperature profile and temperature gradient in similar and dissimilar laser welding. A three-dimensional Gaussian heat distribution equation for moving heat source with conical shape has been incorporated in the present study. A finite element code using software ANSYS APDL has been developed which takes into account the thermal and mechanical aspect of the materials. Properties of the materials AISI 304 austenitic stainless steel and St37 low carbon steel are taken as temperature dependent in the present simulation, which has great influence on the temperature profile. The laser welding temperature distribution was measured using K-type thermocouples with the help of data logger. A good agreement was found between the numerical and experimental results.

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Acknowledgements

The laser welding was done at Central Mechanical Engineering Research Institute (CMERI) Durgapur, funded by National Institute of Technology Patna, India.

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Authors and Affiliations

  1. Department of Mechanical Engineering, National Institute of Technology Patna, Patna, 800005, India

    Pramod Kumar & Amar Nath Sinha

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  1. Pramod Kumar
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  2. Amar Nath Sinha
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Correspondence to Pramod Kumar.

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Technical Editor: Márcio Bacci da Silva.

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Kumar, P., Sinha, A.N. Studies of temperature distribution for laser welding of dissimilar thin sheets through finite element method. J Braz. Soc. Mech. Sci. Eng. 40, 455 (2018). https://doi.org/10.1007/s40430-018-1380-5

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  • DOI: https://doi.org/10.1007/s40430-018-1380-5

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